> Interesting, it would make sense to simply not scramble if the compression > settings are set. That is what happens with refill_buffers right now, it has > precedence over the scrambling. Or if you give a buffer pattern, that also > disables the scrambling. I'll add the same for the compression settings. > > http://git.kernel.dk/?p=fio.git;a=commit;h=0574c885b82aea0332ab5fa35af84db0f3946726 > > Care to give it a test spin, just to be on the safe side? > > -- > Jens Axboe > Hey Jens, According to my test results below it worked for buffer_compress_percentage, but not zero_buffers. Also, it looks like buffer_compress_percentage=0 is broken, unless =0 means disabling that option altogether. fio-2.1.6.1-11-g0574 buffer_compress_percentage=100 iops=83436 buffer_compress_percentage=50 iops=78625 buffer_compress_percentage=1 iops=52751 buffer_compress_percentage=0 iops=69433 zero_buffers iops=69470 scramble_buffers=0 zero_buffers iops=83369 -- To unsubscribe from this list: send the line "unsubscribe fio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html